Improvement in combined air-heaters and boilers



-2 Sheets S heetl. T. H. HARRINGTON. Combined Air Heater and Boiler.

No. 169,167. Patented 0ct.26,1875.

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N. PETERS, PHDTOLITHQGRAPHER. WASHlNG'YON, D. C.

2 Sheets--Sheet 2 T. H. HARRINGTON. Combined Air Heater an'd Boiler.

N0. 169,167, v Patented Oc t.26,l87-5.

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N-PETERS, PHOTO-LITHOGRAPHER, WASHINGTON, D. C.

UNITED STATES PATENT OFFICE.

THOMAS H. HARRINGTON, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN COMBINED AIR-HEATERS AND BOILERS.

Specification forming part of Letters Patent No. 162,167, dated October26, 1875; ap lication filed September 6, 1875 To all whom it may concernBe it known that I, THOMAS H. HARRING- TON, of Pittsburg, in the countyof Allegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Oombined Heater and Boiler; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itpertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specification.

My invention relates to a combined heater and boiler; and it consists inan apparatus run by water, which apparatus operates afan, which latterkeeps up a circulation through a coil of pipe located in a chamber abovea gasburner or burners, the said pipe being surmounted by awater-boiler,and the water that operates the wheel passes through and is heated inthe boiler, being therefore never liable to freeze.

In the drawing, Figure 1 is a vertical section through the water-wheeland fan. Fig. 2 is a vertical longitudinal section through the boilerand heater. A is a cylindrical case, with a conical bottom, A. Near thebottom of this case is a shoe, B, which supports the base of the uprightshaft O. D is a waterwheel located on that shaft in the cylindricalportion of the case A. It is driven by water, which enters through adiminished nozzle, D, which nozzle is attached preferably to theservice-pipe E. A is a cover, which fits upon the case A, which makes itcomparatively tight, though not necessarily water-tight, as the water isnot intended to fill up the chamber A. superposed upon the chamber A isa chamber, F. The shaft 0 passes up through this chamber F, and is hereprovided with a fan, G. This chamber is covered by the cover G, which isopen about its center that air may be suckedin by'the fan G. H is adead-center, fixed so as to form a support or bearing for the top of theshaft 0. This center is supported by a bow, I, and is made adjustableupon this bow by means of a suitable setscrew, H, whereby it may beadjusted centrally, or so as to cause the wheels D and G to revolve freethrough the cases A and F. J is a pipe oroutlet leading from the chamberF, through which air is'forced. This pipe J is formed with a coil, andis subjected to heat from gas-burners P in the chamber or drum L, afterwhich the air thus warmed is dispasses up through the boiler M and outof its j top, through which the products of combustion, or the noxiousodors arising from the burning gas, may be conveyed away. This pipe Lassists in warming the water in the boiler M. Faucets E serve to out 01fcommunication on either side of the boiler M.

The operation of the device is as follows: I

This apparatus is placed in any suitable-1ocality-as, for instance, thecellar of a housea waste-pipe is connected at N to convey away the waterafter it has driven the wheel. Being in position, the gas, passingthrough the pipe 0 and burner or burners P, is directed against thepipe-coil J in the chamber L. The heat, rising, warms the water in theboiler M above. Water is turned on by means of the faucet E, and,passing through the pipes E, is delivered through the nozzle against theperiphery of the wheel D. This wheel, in turn. drives the shaft 0, andwith it the fan G. This fan draws air in through the central openingabove, and forces it through the pipe J, where it is heated in thechamber L, and discharged from J through any suitable pipe into anyparticular apartment. The circulation is obviously kept up by the wheelG, and the apartment is therefore readily heated. At the same time theheat is utilized to heat the water in the boiler above, and it may beused therefrom through the faucet M for domestic purposes, and at thesame time, warm water being used to propel the wheel, there is no dangerfrom freezing.

In the pipe J, near the wheel G, I place a ball, Q. This ball prevents afree passage of iheair, and, consequently, causes it to back up to acertain extent in the chamber F, and,

as a result, the fan G is made to run very quietly. The center H isadjustable up or down by means of the nuts R on the bow I, so that anywear caused by shaft 0 may be read ily compensated.

It will be observed that with a very small waste of water, andwithaslight amount of gas, an apartment may be readily warmed, while the gasis, at the same time, utilized for heating the water. Moreover, aperfect cir culation, in fact, a blast, of hot air is cow stantlyinaintainedby the fan, regardless of any natural draft.

It should be noticed that the waterdriven through the nozzle against thewheel D will, immediately after delivering its impact on the bucket,drop down free from the buckets and pass out of the exit or Waste below.

What I claim is- 1. The combination, with the fan Gr, pipe J, andheating-chamber L, of the water-boiler M, connected with theservice-pipe, substantially as and for the purpose described. j

2. The combined heater and boiler consisting of the pipes E, boiler M,wheel D, and shaft 0, in combination with the fan G, the pipe J,heatingchamber L, and burners P, substantially as and for the purposesdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

THOMAS H. HARRINGTON. Witnesses:

H. T. HOWER, T. B. HALL.

